Remove legacy "touched" table and indexing

Summary: Noticed this in the schema. "Touches" were an idea that never really got off the ground, as we built out more/better notification channels instead. Essentially, they recorded any object you'd ever interacted with. Maybe this will be useful some day, but for now it does nothing and can't be interacted with. Nuke it.

Test Plan: `grep`, loaded Maniphest.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D6953

resources/sql/patches/20130912.maniphest.1.touch.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS {$NAMESPACE}_maniphest.maniphest_touch;

src/applications/differential/search/DifferentialSearchIndexer.php

@@ -62,25 +62,12 @@ final class DifferentialSearchIndexer
       ->withNotDraft(true)
       ->execute();
 
-    $touches = array();
-
     foreach (array_merge($comments, $inlines) as $comment) {
       if (strlen($comment->getContent())) {
         $doc->addField(
           PhabricatorSearchField::FIELD_COMMENT,
           $comment->getContent());
       }
-
-      $author = $comment->getAuthorPHID();
-      $touches[$author] = $comment->getDateCreated();
-    }
-
-    foreach ($touches as $touch => $time) {
-      $doc->addRelationship(
-        PhabricatorSearchRelationship::RELATIONSHIP_TOUCH,
-        $touch,
-        PhabricatorPeoplePHIDTypeUser::TYPECONST,
-        $time);
     }
 
     $rev->loadRelationships();

src/applications/maniphest/search/ManiphestSearchIndexer.php

@@ -43,7 +43,6 @@ final class ManiphestSearchIndexer
       $task->getID());
 
     $current_ccs = $task->getCCPHIDs();
-    $touches = array();
     $owner = null;
     $ccs = array();
     foreach ($transactions as $transaction) {
@@ -55,9 +54,6 @@ final class ManiphestSearchIndexer
 
       $author = $transaction->getAuthorPHID();
 
-      // Record the most recent time they touched this object.
-      $touches[$author] = $transaction->getDateCreated();
-
       switch ($transaction->getTransactionType()) {
         case ManiphestTransactionType::TYPE_OWNER:
           $owner = $transaction;
@@ -100,14 +96,6 @@ final class ManiphestSearchIndexer
           : $task->getDateCreated());
     }
 
-    foreach ($touches as $touch => $time) {
-      $doc->addRelationship(
-        PhabricatorSearchRelationship::RELATIONSHIP_TOUCH,
-        $touch,
-        PhabricatorPeoplePHIDTypeUser::TYPECONST,
-        $time);
-    }
-
     // We need to load handles here since non-users may subscribe (mailing
     // lists, e.g.)
     $handles = id(new PhabricatorHandleQuery())

src/applications/search/constants/PhabricatorSearchRelationship.php

@@ -14,6 +14,5 @@ final class PhabricatorSearchRelationship {
   const RELATIONSHIP_REPOSITORY = 'repo';
 
   const RELATIONSHIP_OPEN       = 'open';
-  const RELATIONSHIP_TOUCH      = 'poke';
 
 }

src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php

@@ -1572,6 +1572,10 @@ final class PhabricatorBuiltinPatchList extends PhabricatorSQLPatchList {
         'name' =>
           $this->getPatchPath('20130820.file-mailkey-populate.php'),
       ),
+      '20130912.maniphest.1.touch.sql' => array(
+        'type' => 'sql',
+        'name' => $this->getPatchPath('20130912.maniphest.1.touch.sql'),
+      ),
     );
   }
 }